halifax



No. 625,726 Patented May 23, I899. J. N; HALlFAX.

NUBLt-N'Gi MACHINE.

(Application filed Mar. 4, 1898.) (No Model.) 5 Sheets-Sheet l.

"m: Nbnms virus 00., wuo'raurna. WASNINGTON. n. c.

No. 625,726. iamnmma 23, I899 N. HALIFAX. NURLING MACHINE.

(Application filed Mar. 4, 1898:)

(No M01181.) 5 Sheds-Sheet a;

Y V i'\ m: I 4 I PW MW- 4 THE NORMS P THIS CD PHOTO LITNO WASNINGTON D Cv No. 625,726.- Patented May 23,1899.

. J. N. HALIFAX.

NUBLING MACHINE.

(Application filed 4, 1898.)

(No Model.) 5 Sheets-Sheet 4.

1 62 H7241) x M h j I I THE NORRIS PETERS CO 7 PHQTO-LITHOH WASHINGTON,D. C.

Patented May 23, I899. J. N. HALIFAX.

NURLING MAGHiNE.

(Application filed Mar. 4/1898.

5 Shant -Shoat 5.

(No Model.)

i I 717mm ,Josgpiz JMZ/ZZZZ 'fgg I i Ii M w 5 M M! 7ZZJ J I r u pzrzasco. Pnoruumu, WASHINGTON, DC.

UNITED STATES PATENT OFFICE;

JOSEPH NATHANIEL i-IAmrAxot CHICAGO, ILLINoIsAsSIGNOR TO-THE GEO. L.THOMPSONMANUFACTURING COMPANY, or SAME PLACE.

NURLINGS-MACHINE- SPECIFICATION forming part of Letters Patent No.625,726, dated May 23, 1899.

Apnlication filed March 4-, 1398. Serial No. 672,481. on model.)

To all whom it may concern/. the exteriorsurface of and to embrace theBe it known that I, JOSEPH NATHANIEL tubular part to be acted upon, anurling- HALIFAX, of Chicago, in the county of Cook tool adapted toenter said tubular part and and State of Illinois, have invented certainprovided on its exterior surface with suit- 5 new and usefulImprovements in Nurlingably-arranged projectionsand interveningre-Machines; and I do hereby declare that the cesses, said tool beingadapted to engage with following is a full, clear, and exact descripanoutward pressure the opposite sides of the tion thereof, reference beinghad to the'acinner surface of said tubular body, so that companyingdrawings, and to the letters of when either the tool or body is rotatedwith KO reference marked thereon, which form a part respect to the otherpart the projections of of this specification. said tool will form uponthe inner surface of This invention relates to an improved apthe tubularbody reversely-arranged projecparatus for roughening or nurling thecylintions and recesses and clamping means for dric inner surfaces oftubular bodies,and is holding rigidly and in proper relation said l 5designed more especially for operating upon a die and'contained tubularpart. Said die will tubular body into which is to be inserted an .bepreferably made separable and in parts or internal tubular part which isto be thereafter halves, which are provided in their proximate expandedor distended into close contact with faces with depressions of such formthat when the inner knurled surface of the external said parts arebrought together with said de- 20 body, so as to form interlockingrecesses and pressions opposite each other they form reprojectionsbetween said inner and outer cesses or sockets of such shape as toclosely parts to provide arigid joint between the A embrace the tubularpart and when engaged 7 same. 7 by the clamping means will support saidtu- The apparatus herein illustratedis designed bular part againstlateral flexure under the 25 to knurl or roughen the interior surfacesof outward pressure of the tool when the'latter the thimbles or socketsof junction pieces or is forced into the same. fittings ofsingularly-connected frames, such The invention consists in the mattershereas bicycle-frames, into which the ends of the inafter set forth, andmore particularly point- 1 tubular parts of the frame fit and by meansed outin the appended claims. 30 of which said frame members are joinedto- In the drawings I have shown a convenient gether in angular relationin the manner set form of apparatus for nurling the sockets or forthinmy prior application for United States thimbles of junction pieces orfittings for bi- Letters Patent, Serial No. 656,875, filed by cycle'andother frames, said apparatus emme October 30, 1897; butsuch apparatusmay bracing as a means for actuating the nurl- 35 be employed whereverit is desired to produce ing-tool and supporting the die a drill-press arigid joint between two tubular parts. Said of ordinary form. I havealso in said drawapparatus, as illustrated, is designed to effect ingsillustrated the various forms of dies re one stage of the process ofassembling bicyquired for use in. nurling the different thimcle-fra'inesin the manner set forth, the subbles for said junction pieces orfittings which 0 4o sequent stages being effected bysuitable ex-' areemployed in bicycle-frames of ordinary panding means by whichthe ends ofthe tuconstruction, it being understood that each bular members of theframe which fit into fitting requires a separate die for each socket thesockets of the junction-pieces are distendor thimble to be knurled. t edinto interlocking relation with said sock- In said drawings, Figure 1illustrates in 45 ets-such, for instance, as shown in my prior sideelevation a drill-press of ordinary conapplications forUnited StatesLetters Patent, struction provided with my invention. Fig. Serial Nos.663,516 and 663,517, filed by me 2 is a perspective View of the clampingmeans December 27, 1897. for holding the dies in position. Fig. 3 is aAn apparatus embodying myinvention emplan view of the same on a reducedscale. no 50 braces as its main or principal features a die Fig. 4 is across-section taken on line 4 4 of made of such form as toclosely'conform to Fig. 3. Fig. 5 is a longitudinal section taken online 5 5 of Fig. 3. Fig. 6 is a side elevation of one form ofhurling-tool. Fig. 7 is a bottom plan view thereof. Fig. 8 is a detailsection taken on line 8 8 of Fig. 7. Fig. 9 is a detail section taken online 9 9 of Fig. 7.- Fig. 10 is a side elevation of another form ofhurling-tool. Fig. -11 is a bottom plan view thereof. Fig. 12 is adetail section taken on line 12 12 of Fig. 11. Fig. 13 is across-section taken on line 13 13 of Fig. 10. Figs. 14 and 15 illustratedifferent views of the dies for use in nurling the upper andlower-fittings of the front fork-head members. Figs. 16 and 17illustrate different views of the dies for nurling the seat-postfitting. Figs. 18, 19, and 20 illustrate different views of the dies foruse in nurling the different thimbles or sockets of the crank-hanger.Fig. 21 illustrates the various fittings which are to be treated by themachine herein illustrated.

As shown in said drawings, A designates a drill-press of ordinary formprovided with a vertically-arranged driving-spindle A, a

counter-shaft A and a work-supporting table or bed-plate A Said shaft Ais adapted to be driven from any suitable source of power to give rotarymotion to the spindle A, and said spindle is provided with asleeve A,which has sliding, but non-rotative, engagement therewith, which isprovided with means by which it may be raised and lowered and is alsoprovided in its lower end with a toolholding chuck A Now referring tothe parts constituting my invention, B designates as a whole ahurlingtool which is secured in the chuck A C a die which is adapted toembrace the fitting to be knurled and which is made of two parts orhalves in order to receive the fitting, and D is a clamping device bywhich the two parts of the die are clamped together and the fitting heldin position to be acted upon by the hurling-tool. The clamping device ismounted upon a supporting-block E, which is secured rigidly in anysuitable manner upon the work-supporting table or bed-plate A of thepress. Said clamping devices consist of a stationary jaw D and a movableor swing ing jaw D which is pivoted at one end to the stationary jaw, soas to swing in a horizontal plane. Said clamping-jaws are secured to thesupporting-block E by means of bolts or studs d d, which havescrew-threaded en gagement with the block, the bolt d passing throughthe hinged portion of the jaws and forming the pivot-pin therefor andthe bolt d being engaged with a bolt-aperture formed partlyin thestationary and partly in the movable jaw at the opposite ends thereof.Said movable jaw is conveniently provided with a handle 01 by which itmaybe swung toward and away from the stationary jaw. The movable jaw islocked in its closed position by means of a locking-bar D which ispivotally secured at one end to one of the jawsthe stationary jaw inthis instanceby means of a pivot-pin dfland is provided at its oppositeend with a nut D placed on the screw-threaded end of said. locking-barand adapted to be tightenedagainst theou ter side of the movable jawwhen the latter is in its closed position, said nut D beingconvenientlyprovided with a handle D, by which it maybe turned and thelocking device may be manipulated.

used in the apparatus described will be of the same exteriorconformation and size, so as to fit the said socket. Said dies, asbefore stated,-

are made of two parts or halves, and as a preferable construction meansare provided for retaining each half thereof in fixed relation with thejaw with which it is engaged, so that 'when themovable jaw is swung awayfrom the stationary jaw the parts of the die will be separated, so as torelease the fitting previously held thereby without detaching the samefrom the jaws. This is accomplished in the present instance by means oftap-bolts d which are inserted through the opposite sides of the jawsand engage at their inner ends screw-threaded apertures 1n the die.

With this construction, it will be necessary to set the die but once inthe clamping-jaws while operating upon fittings ofa certain design, theparts or handles thereof being separated to release the fittings whenthe movable jaw is swung away from the stationary jaw and being broughttogether to clamp a new fitting therein when said jaw is swung back intoits closed position.

The tool by which the inner surface of the fitting is knurled orroughened consists of a shank having a tapered portion 13 and acylindric portion 13*, and having in its upper end a flattened portion Bwhich fits into an angular socket in the chuck A The operative portionof the tool, or that which engages the inner surface of the tubularfitting to be operated upon, consists of two nurlingwheels 13 13, madein the form of short sleeves or cylinders rotatively mounted in anysuitable manner upon the end of the shank, with their axes of rotationparallel with the axis of rotation of said shaft. Said nurling wheelsare located upon opposite sides of the central axis of the cylindricportion B of the shaft, with their opposite outer sides projectingbeyond the planes of the outer sides of the shaft, and, as herein shown,are mounted to rotate upon pins 1), which fit into longitu- 'dinalsockets in the inner end of the shank and are provided on their outerends with outer endof theshank said wheels are located. Said pins 1) aresecured in place by means of locking-pins b, which are inserted intoapertures in the shank and engage transverse recesses in said pins. Saidnurlingwheels B are herein shown as provided on their outer surfaceswith inclined or spirallyarranged ribs and intervening grooves,whichribs and grooves on one wheel extend in a direction opposite to those onthe other wheel. The wheels being independently rotative upon the shankand engaging opposite sides of the inner surface of the fitting, will,when said shank is rotated with respect to the fitting and moved endwisetherein, turn in opposite directions against the opposite sides of theinner surface of the fitting, so that the ribs of one Wheel will-cut aplurality of parallel spiral grooves which extend in one direction,while the oppositely-arranged ribs in the'other will cut a plurality ofspiral grooves which intersect the grooves cut by the first wheel incrisscross arrangement. Obviously the outer or nurling surfaces of thetool may be made of other form than that herein shown. In order that thenurlingtool may readily enter the tubular fitting, said wheels are madeof outwardly-tapered form, so that the distance between the oppositesides of the outer ends thereof will be slightly less than the innerdiameter of the fitting to be knurled, it being the intention that themean distance between said opposite sides of the wheels shall besubstantially equal to the inner diameter of said tubular.

fittings. Means are also provided for varying the distance between theopposite sides of said hurling-wheels, whereby the tools as a whole maybe used on tubular fittings of different internal diameters. This isaccomplished in the present instance by dividing the outer end of theshank into two parts by means of a slit B terminatingiu aWeakening-aperture B, which construction permits the opposite halves ofthe shank on each side of the slit B to be sprung away from each other,said shank being made of a metal which will permit of such movement ofthe two halves thereof. The means for spreading the two parts of theshanks to increase the distance between the opposite sides of thehurling-wheels consist, as shown in Figs.

6 to 8, inclusive, of two expanding-screws b b which engageinteriorly-screw-threaded sockets which'intersect the slit B and areformed partly in one and partly in the other of the two halves of theshank. The outer ends of said sockets are conical and are engaged by theconically-shaped heads b of said screws. Said screw-heads are providedwith transverse slots, by means of which they may be engaged by asuitable tool for moving the same inwardly and outwardly within thesockets.

In Figs. 10, 11, 12, and 13 is shownasomewhat-modified form of means forexpanding the outer end of the shank. The expandingscrew b in thisinstance, instead of being located between the wheels B engages atransverse aperture which extends through the shank from one side to theother thereof above said wheels and intersects said slit B Said apertureis made at both ends of conical or outwardly-flaring shape and isengaged at one end by the conical head b of the expanding-bolt b and atits other end by a conically-shaped not b which has screw-threadedengagement with the bolt, said head and nut being made of such size asto be contained entirely within said aperture. \Vith this constructionwhen the bolt is turned into the nut it will act to move both theconical head and nut inwardly, with the result of expanding or spreadingthe opposite parts of the shank away from each other. The lastdescribedconstruction is desirable where the tubular part of the fitting is ofrelatively small diameter and where the nurling-wheelsare so closetogether as to leave insuflicient space between them for theexpanding-bolts, while the first-described construction may be employedfor fittings having tubular parts of greater diameter. In saidlastmentioned construction the cylindric portio'n B of the shank isreduced, as shown in' Fig. 10, to a diameter less than that of theconical upper part thereof.

In Figs. 14 and 15 are illustrated the dies for holding the fitting orjunction-piece which joins the upper horizontal member of the frame withthe upper end of the steering-head member and for also holding thefitting or 3' unction-piece which joins said steering-head member withthe lower oblique member of the frame. Said fittings (shown in Fig. 21)are designated as E and E, respectively, and consist of main cylindricportions E E and branchcylindricthimblesE E Saidfittings are identicalin their construction, but are reversed with respect to the angles whichthe branch thimbles bear with respect to the main body of the fitting orthat portion which engages the steering-head member when said fittingsare assembled in the frame. The die shown in Fig. 14 is designed to holdsaid upper and lower fittings of the steering-head member while theinterior surface of the main body portions E or E are being knurled.Said dies, as before stated, are made of two parts or halves F F and areprovided on their proximate faces with sernieylindric depressions ff,which when the parts of the die are brought together form a cylindricrecess or socket adapted to receive the main body portion E or E of saidfittings. Said proximate faces of the parts F F of the die are alsoprovided with other semicylindric depressions f each of which intersectsat its inner end at an angle the depression f and opens into one of theouter faces of the die, said depressions f forming when the parts of thedie are brought together a cylindric recess or socket adapted to receivethe branch portions E or E of said fittings E or E Said die will bethroughout their entire length.

made of greater vertical depth than the length of the main body portionsof the fittings to be received thereby, in order to afford space insideof said fittings to permit the tool to pass entirely through thefittings, so that the interior surface of said body portions maybeknurled Fig. 15 illustrates in detail a dieemployed for holding saidfittings E and E in such manner as to present the branch or thimbleportions E or E to the nurling-tool. The parts or halves F F of said dieare provided in their proximate faces with obliquely-arrangedsemicylindrio depressions f f which form when the parts are broughttogether a socket or recess to receive the body portions of thefittings, and with other semicylindric depressionsf f perpendicular tothe outer face of the die, which intersect said depressions f and formsockets to receive the branch portionsof thimbles E or E of thefittings.

In Figs. 16 and 17 are shown in detail dies for holding the seat-postfitting G, which is shown in Fig. 17, and consists of a main cylindrictubular body portion G, a branch tubular thimble G to which the rear endof the upper horizontal member of the frame is attached, andlaterally-separated rearwardlydirected lugs G to which are attached therear oblique members of the frame. Fig. 16 illustrates a die which isadapted to hold the fitting G in position for the tool to enter thebranch portion or thimble G thereof. The two parts or halves Hconstituting said die are provided with obliquely-arranged semicylindricdepressions h h, which when brought together form a socket or recess toreceive the main body portion G of the fitting, and other depressions hh, which intersect the depressions h and extend to the outer face of thedie, perpendicularly thereto, and form when the parts are broughttogether a socket or recess to receive the branch portion G of thefitting. Said parts of the die are provided also in their proximatefaces with short angular depressions 77, h which intersect thedepressions h in such relation as to form when the parts are broughttogether a recess or socket to receivethe lugs G of the fitting. Fig. 17illustrates adie adapted to hold the fitting G in position for the toolto enter the main body portion thereof, the parts or halves H H of saiddie being provided in their proximate faces with semicylindrio recessesor depressions h 71 perpendicular to the outer face of the die, andintersecting semicylindric recesses h h, which when brought togetherform recesses or sockets to receive the main body portion and the branchportion or thimble of the fitting, respectively, and are provided withangular depressions 72. h so formed with respect to the depressions h has to provide when brought together a socket for the lugs G In Figs. 18,19, and 20 are shown dies which are employed for holding thecrank-hanger fitting in the several positions required to present theseveral-thimbles or sockets to the action of the nurling-tool. Thecrank-hanger, which is shown in Fig. 21 and designated by the letter I,consists of a main body portion 1, a f0rwardly-extending thimble 1 towhich the rear end of the front oblique member of the frame is attached,an upwardly-directed thimble I to which the lower end of the said memberis attached, and two rearwardly-directed thimbles I 1 to which theforward ends of the bottom fork members are attached. Fig. 18illustrates the die which is adapted to hold the fitting in position forthe tool to enter the branch portion or thimble 1 The two parts orhalves J J of said die are provided on their proximate faces withrelatively wide and deep semicircular depressionsjj, which extend to thelaterally opposite faces of the die, and with other depressionsj'j,whichintersect the depressionsjj and extend to the outer'face of the dieand perpendicular thereto. Said depressions jj aretapered to form whenthe parts of the die are brought together a tapered socket to receivethe exteriorly-tapered thimble I. The part J of the die is provided withtwo tapered socketsj j adapted to receive the thimbles I I of thefitting, and the part J thereof is provided with an oppositely-extendingtapered socket 7' adapted to receive the thimble I of said fitting. Fig.19 illustrates a die adapted to hold the fitting I, so that the tool mayenter the thimble 1 thereof. Said die consists of two parts or halves J2 J which are provided in their proximate faces with oppositesemicylindric depressionsj j which extend from one side face to theother of said die and are adapted to receive when the parts are broughttogether the main body of the fitting, and is provided also with othersemicircular depressionsj j which intersect said depressions 7' j andare adapted to receive when the parts are brought together the thimble Iof the fitting and to hold it in proper relation to the nurling-tool.The part J of the chuck is provided with tapered sockets or recessesjand j j adapted to receive the seat-post thimble 1 and the rear-forkthimbles 1 1 respectively. Fig. 20 illustrates the die adapted to holdthe fitting so as to present the rearwardlydirected thimbles I I of thefitting to the nurling-tool. Said die consists of two parts or halves JJ which are provided in their proximate faces with oppositely arrangedsemicylindric depressionsj j which extend from one side face to theother of the die and adapted to receive when the parts are broughttogether themain body portion 1 of the fitting. Said parts are alsoprovided in their proximate faces with other oppositely-arrangedparalleldepressionsff, which intersect said depressions j j and areadapted to receive when the parts are brought together the thimbles I Iof the fitting. The part or half J of the die is provided also withtaper-ed sockets J .1, which are adapted to receive the thimble orbranch portions I I of the fitting when engaged by said chuck.

I claim as my invention- 1. An apparatus for nurling the interiorsurface of tubular bodies comprising a separable die which is adapted toclosely embrace the body, a nurling-tool adapted to be inserted into thetubular interior of the body to engage the interior surface thereof, andmeans for clamping said parts of the die together and for holdingthesame in proper position with respect to the nurling-tool, comprisingclampin g-j aws provided on the proximate faces with oppositely-arrangedrecesses adapted to receive said die, and means for locking said jawstogether.

2. In an apparatus for nurling the interior surface of tubular bodies,the combination with a rotative and endwise-movable nurling-tool, aseparable die adapted to receive and closely embrace said tubular body,clam ping-jaws for clasping said parts of the die together and forholding the same in proper relation to the nurling-tool, andscrew-threaded bolts passing through said jaws and each engaging at itsinner end the adj acent part of the die for detachably connecting thesame with the jaws.

3. In an apparatus for nurling the interior surface of tubular bodies,the combination with a die adapted to receive and closely embrace saidtubular body, a nurling-tool adapted to enter the interior of said bodycomprising a rotative shank, laterally-separated nurling-wheelsrotatively mounted on the advance end of said shank and provided ontheir outer surfaces with oppositely-disposed spiral grooves and ribs,said wheels being conical and smaller at their outer than at their innerends.

.4. In an apparatus for nurling the interior surface of tubular bodies,the combination with a die adapted to receive and closely embrace saidtubular body, a nurling-tool adapted to enter the interior of said body,

comprising a rotative shank, laterally-sepawith a die adapted to receiveand closely embrace said tubular body, of a nurling-tool adaptedto-enter the interior of the body, comprising a rotative shank,laterally-separated nurling-wheels rotatively mounted on the advance endof said shank, said shank being provided between said wheels with alongitudinal slit, and means engaging said slit to Vary the distancebetween said wheels.

6. In an apparatus for nurling the interior surface of tubular bodies,the combination with a die adapted to receive and closely embrace saidtubular body, of a nurling-tool adapted to enter the interior of thebody, comprising a rotative shank, laterally-separated nurling-wheelsrotatively secured to the advance end of said shank, said shank beingprovided between said tools with a longitudinal slit, and means engagingsaid slit to separate said tools, comprising an expanding-Y JOSEPHNATHANIEL HALIFAX.

\Vitnesses:

O. CLARENCE PooLE, TAYLOR E. BROWNE.

